What is the current water temperature in Fukuoka?

Q: What is the current water temperature in Fukuoka?

As of now, in Fukuoka, the water temperature is 13.22°C. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration.

Japan > Fukuoka

Water temperature in Fukuoka

Detailed information about the current water temperature in Fukuoka. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.

55.8

°F

January 22, 23:44

Trend:

stable

Yesterday:

56.5°F

Tomorrow:

55.9°F

Sunrise:

07:21

Sunset:

17:39

Day Length:

10 h. 18 min.

Fukuoka in January

Minimum:

57.5°F

Average:

59.4°F

Maximum:

61.6°F

Sea water temperature in Fukuoka today

As of now, in Fukuoka, the water temperature is 55.8°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 1.1°F lower than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to rise a bit.

Recent sea temperature and forecast

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 58.6°F on 2017, while the historical minimum was 54.9°F on 2025.

latest data

last year

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the minimum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 55.9°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Fukuoka

Date	Current Year actual* / forecast**	last year	10 years average
Jan 8	58.9°F	57.7°F	58.8°F
Jan 9	59.2°F	57.9°F	58.8°F
Jan 10	58.0°F	57.7°F	58.7°F
Jan 11	58.1°F	57.8°F	58.7°F
Jan 12	58.2°F	57.8°F	58.5°F
Jan 13	58.1°F	57.5°F	58.3°F
Jan 14	57.7°F	57.6°F	58.2°F
Jan 15	57.7°F	57.6°F	58.1°F
Jan 16	56.9°F	57.6°F	57.8°F
Jan 17	56.8°F	57.6°F	57.8°F
Jan 18	56.4°F	57.6°F	57.7°F
Jan 19	56.0°F	56.3°F	57.2°F
Jan 20	56.2°F	55.2°F	57.1°F
Jan 21	56.5°F	55.7°F	56.9°F
Jan 22	55.8°F	54.9°F	56.9°F
Jan 23	55.9°F	55.4°F	57.1°F
Jan 24	56.0°F	55.2°F	57.1°F
Jan 25	55.9°F	55.8°F	57.0°F
Jan 26	55.9°F	55.9°F	57.0°F
Jan 27	55.9°F	56.0°F	57.0°F
Jan 28	56.0°F	56.2°F	57.1°F
Jan 29	56.0°F	56.3°F	57.1°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Fukuoka by month

In Fukuoka, the months July through October offer comfortable swimming conditions, which amounts to 112 swimming days.

The warmest water in Fukuoka was recorded on August 4, 2024, reaching a 88.2°F. While the coldest temperature occurred on March 10, 2025, dipping to 51.7°F. The average readings by season are 58.5°F in Winter, 60.1°F in Spring, 77.8°F in Summer, and 73.5°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Kitakyushu	57.1°F	30mi
Shimonoseki	57.2°F	39mi
Kumamoto	55.0°F	57mi
Nagasaki	59.9°F	66mi

* current water temperature in this city

** straight line distance from Fukuoka